Cerdistus sp. (genus)

Slender Robber Fly at Copmanhurst, NSW

Request use of media

Identification history

Cerdistus sp. (genus)	30 Jul 2025	MichaelMulvaney
Cerdistus sp. (genus)	13 Jun 2025	KimberiRP
Unverified	2 Jun 2025	MazzV

Identify this sighting

Please Login or Register to identify this sighting.

User's notes

Known to me as a ‘Horse fly’, this large long brown insect has clear wings which fold down the length of its body at rest. It has large brown compound eyes and appears to have a light-coloured furry surface to its under-thorax. The legs appear to have spines, and have a mix of colours – black-brown and tan, with dark ‘feet’. The abdomen, which appears to be pale underneath, seems to end in a dark coloured, long and narrow ‘tube’.

1 comment

KimberiRP wrote:

13 Jun 2025

Robber fly, Cerdistus sp.

Please Login or Register to comment.

Location information

Places Copmanhurst, NSW

Sighting information

1 Abundance
MazzV Recorded by
Collections
MazzV NatureMapr New South Wales North Coast Robber flies (Asilidae) True flies (Diptera) Insects

Additional information

an unidentified grass stem Associated plant
12mm to 25mm Animal size

Species information

Cerdistus sp. (genus) Scientific name
Slender Robber Fly Common name
Not Sensitive
Local native
Non-invasive or negligible
Up to 1641.6m Recorded at altitude
Machine learning
External link More information

Record quality

Images or audio
More than one media file
Verified by an expert moderator
Nearby sighting(s) of same species
GPS evidence of location
Description
Additional attributes

Australian Capital Territory

New South Wales

Queensland

Northern Territory

Western Australia

South Australia

Victoria

Tasmania